48
HCD-HPR90/HPR99XM
Pin No.
Pin Name I/O Description
43
CD XLT O CD serial data latch pulse signal output to the CD DSP
44
MP3 ACK I MP3 acknowledge signal input from the CD DSP
45
MP3 REQ O MP3 data request signal output to the CD DSP
46
MP3 XLAT O MP3 serial data latch pulse signal output to the CD DSP
47
MP3 IREQ I MP3 data request signal input from the CD DSP
48
CD XRST O System reset signal output to the CD DSP "L": reset
49
CD XATCN O
Oscillation circuit on/off control signal output to the CD DSP
"L": oscillation stop, "H": self-oscillation
50
CD DRIVER MUTE
OMuting signal output to the motor/coil driver
51
SEL A O Control signal output to the function selector
52
ST TUNED I Tuning detection signal input terminal Not used
53
ST CE O Chip enable signal output to the tuner (FM/AM)
54
ST DOUT O Serial data output to the tuner (FM/AM)
55
ST CLK O Serial data transfer clock signal output to the tuner (FM/AM)
56
ST DIN/STEREO
I Serial data and stereo detection signal input from the tuner (FM/AM)
57
POWER ON/OFF
O Sub power on/off relay drive signal output terminal "H": power on
58
HP MUTE O Headphone muting on/off control signal output terminal "H": muting on
59
SEL B O Control signal output to the function selector
60
LINE MUTE O Line muting on/off control signal output terminal "H": muting on
61
AMP SI O Serial data output to the electrical volume
62
VCC - Power supply terminal (+3.3V)
63
AMP SC O Serial data transfer clock signal output to the electrical volume
64
VSS - Ground terminal
65
SEL INH O Control signal output to the function selector
66
S-MASTER
PG MUTE
OPG muting control signal output to the stream processor
67
S-MASTER
SOFT MUTE
O Soft muting control signal output to the stream processor
68
S-MASTER RST O System reset signal output to the digital power amplifier "L": reset
69
S-MASTER SD O Shut down signal input from the digital power amplifier "L": shut down
70
S-MASTER DATA
O Serial data output to the stream processor
71
S-MASTER SHIFT
O Serial data transfer clock signal output to the stream processor
72
S-MASTER LATCH
O Serial data latch pulse signal output to the stream processor
73
NSP MUTE O NSP muting control signal output to the stream processor
74
WAKE UP KEY
IWake up signal input terminal
75
S-MASTER INIT
O Initialize signal output to the stream processor
76 to 80
--Not used
81
NO USE O Not used
82
XM POWER 3.3V
O Power on/off control signal output terminal for the XM circuit (HPR99XM)
83
XM POWER 5V
O Power on/off control signal output terminal for the XM circuit (HPR99XM)
84
AC DET I AC power detection signal input terminal
85
XM DTIC CMD
OCommand mode select signal output to the XM receiver (HPR99XM)
86
EEPROM SDA I Serial data input from the EEPROM
87
EEPROM SCL I Serial data transfer clock signal input from the EEPROM
88
STANDBY LED O LED drive signal output terminal for STANDBY indicator "H": LED on
89, 90 -
-Not used
91 to 93
KEY3 to KEY1 I Front panel key input terminal (A/D input)
94
VOLUME
I
Jog dial pulse input from the rotary encoder (VOLUME) (A/D input)
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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